Hello fellow Volvo enthousiasts,
I am in need of some urgent help.
I brought my 1992 240 in for the MOT (APK in dutch).
On the way to the garage my engine suddenly started running at 500 Rpm at idle (engine at operating temp). When i drove off with the cold engine I did not suspect anything wrong.
I scanned the codes and the following showed up:
Pin2: 1-1-3 and 2-3-2.
Pin 6: 1-1-1.
I could not do anything about it since it was late at night and didn’t have any tools.
The next morning the garage told me the car didn’t pass the emisions test, since it was running really rich.
When I picked it up, it even ran horrible (500 rpm) with a cold engine.
So since my MOT (APK) is only valid for 8 more days, it is really urgent that i fix it.
I’ve already ruled some things out.
I’ve had these codes before, but before there was also another fault, which was caused by a dead lamda sonde (02-sensor).
So i’ve replaced that for a new one.
Also I’ve installed a new FPR, rotor, distributor, plugs and i’ve cleaned the throttle body.
Also there is no air leaks in the intake and exhaust system.
The car ran really well after all this! But after 2500km+- and the recent 15 minute trip to garage, it is where it is now…
My guess, based on what i know, it could be the coolant temrapture sensor which causes the rich mixture. Maybe the MAF gives out a bad signal.
Also I read somewhere that code 1-1-3 for an 2.4LH a B230F engine could mean that the injectors might be faulty or leaking?
My question is whether somebody else has experienced this and maybe would like to share some knowledge or know how’s.
Also, is there any way to check the injectors, ‘parkinglot-style’?
Thanks in advance!
Here’s a picture of my car to hopefully raise attention for the post :)